Evaluation of Aneurysm Cases Undergoing Surgery at a Tertiary Center in Iran: A 22-year Retrospective Study.

Background And Aims: An arterial aneurysm is characterized by a localized expansion of a blood vessel relative to its original dimensions. Specifically, an abdominal aortic aneurysm (AAA) is identified as an aortic diameter measuring at least one and a half times the standard diameter at the renal artery level, approximately equivalent to 2.0 cm.